CN103374344B - Fracturing fluid system with surface activity after gel breaking - Google Patents
Fracturing fluid system with surface activity after gel breaking Download PDFInfo
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- CN103374344B CN103374344B CN201210122523.4A CN201210122523A CN103374344B CN 103374344 B CN103374344 B CN 103374344B CN 201210122523 A CN201210122523 A CN 201210122523A CN 103374344 B CN103374344 B CN 103374344B
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- fracturing fluid
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- fluid system
- gel
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- 239000012530 fluid Substances 0.000 title claims abstract description 37
- 230000000694 effects Effects 0.000 title abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000003381 stabilizer Substances 0.000 claims abstract description 10
- 239000004927 clay Substances 0.000 claims abstract description 6
- 239000003292 glue Substances 0.000 claims description 18
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 6
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 4
- 239000004159 Potassium persulphate Substances 0.000 claims description 3
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 3
- 239000004615 ingredient Substances 0.000 claims description 3
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 3
- 235000019394 potassium persulphate Nutrition 0.000 claims description 3
- 229960004418 trolamine Drugs 0.000 claims description 3
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 2
- LYPJRFIBDHNQLY-UHFFFAOYSA-J 2-hydroxypropanoate;zirconium(4+) Chemical compound [Zr+4].CC(O)C([O-])=O.CC(O)C([O-])=O.CC(O)C([O-])=O.CC(O)C([O-])=O LYPJRFIBDHNQLY-UHFFFAOYSA-J 0.000 claims description 2
- 239000004160 Ammonium persulphate Substances 0.000 claims description 2
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 claims description 2
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 2
- 235000019395 ammonium persulphate Nutrition 0.000 claims description 2
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 2
- 239000004327 boric acid Substances 0.000 claims description 2
- 239000006259 organic additive Substances 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- JMXKSZRRTHPKDL-UHFFFAOYSA-N titanium ethoxide Chemical class [Ti+4].CC[O-].CC[O-].CC[O-].CC[O-] JMXKSZRRTHPKDL-UHFFFAOYSA-N 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 8
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 abstract description 5
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 abstract description 5
- 239000004576 sand Substances 0.000 abstract description 2
- 229920002907 Guar gum Polymers 0.000 abstract 1
- 239000003431 cross linking reagent Substances 0.000 abstract 1
- 239000000665 guar gum Substances 0.000 abstract 1
- 229960002154 guar gum Drugs 0.000 abstract 1
- 235000010417 guar gum Nutrition 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 15
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 description 12
- 239000000243 solution Substances 0.000 description 11
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 description 6
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 description 6
- 244000007835 Cyamopsis tetragonoloba Species 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 239000000499 gel Substances 0.000 description 3
- 239000004094 surface-active agent Substances 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- GJCOSYZMQJWQCA-UHFFFAOYSA-N 9H-xanthene Chemical compound C1=CC=C2CC3=CC=CC=C3OC2=C1 GJCOSYZMQJWQCA-UHFFFAOYSA-N 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 239000013543 active substance Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 235000015110 jellies Nutrition 0.000 description 2
- 239000008274 jelly Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- 229920001285 xanthan gum Polymers 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000009096 changqing Substances 0.000 description 1
- 239000003978 infusion fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Landscapes
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention relates to a fracturing fluid system with surface activity after gel breaking; the gel fracturing fluid comprises the following components in parts by weight: solution A: 0.1-1.0 part of dodecyl grafted guar gum, 1.0-2.0 parts of temperature stabilizer, 0.5-1.0 part of clay stabilizer and 96.0-98.4 parts of water; solution B: 0.5-2.0 parts of cross-linking agent, 0.01-0.1 part of gel breaker and 97.9-99.5 parts of water; mixing the solution A and the solution B according to the volume ratio of 100: 0.5-2.0 to prepare the gel fracturing fluid; the fracturing fluid has better rheological and gel breaking performances, can meet the construction requirements of long cracks and high sand ratio, and can also meet the construction requirements of mixed water fracturing on large discharge capacity and low friction resistance.
Description
Technical field
The present invention relates to one can improve fracturing fluid recovery (backflow) performance and reduce formation damage and can be used as gelled fracturing fluid or the of the fracturing fluid fracturing fluid system of slippery water.
Background technology
Unconventionaloil pool hides the new focus that exploitation becomes global energy exploitation, unconventionaloil pool ensconce the contribution proportion in world energy sources by 2000 30% be increased to now close to 50%, emerging volume fracturing transformation theory is that compact oil reservoir renovation technique is filled with new life vigor.Compact oil reservoir transformation is the major tasks of Changqing oilfields exploratory development always, along with continuous renewal and the in-depth of reservoir conditions, transformation means, assessment theory, therefore needs fracturing fluid system to improve constantly and improves its reservoir reconstruction and reservoir protection performance.
Domestic and international surfactant-based fracturing liquid and the application of vegetable jelly class fracturing liquid have certain scale, and it is strong that surfactant fracturing fluid returns row's ability, but workability is stable not as good as vegetable jelly, can not meet deep-well and massive hydraulic fracture construction.Plant gum fracturing fluid at reservoir protection performance reverse side a little less than surfactant fracturing fluid, therefore can by series reaction just surfactivity group be combined with guanidine xanthan molecule, develop a kind of modification guanidine glue class thickening material, make it retain and B
3+, Ti
4+, Zr
4+binding site needed for coordination, and after broken glue, form the surfactivity breaking glue solution of amphiphilic, improve reservoir reconstruction performance and the reservoir protection performance of system simultaneously.
Summary of the invention
After the object of this invention is to provide a kind of broken glue, there is surface-active fracturing fluid system; For compact oil reservoir low porosity and low permeability, the geology characteristic such as pore throat is little, throat structure is complicated, pressure factor is low, replacement pressure is high, from reduction hollow billet resistance, reduce fracturing liquid for the purpose of the delay injury of reservoir, by surfactivity group and the ingenious combination of guanidine xanthan molecule, change the characteristic of plant gum fracturing fluid single parent water, form the surfactivity breaking glue solution of amphiphilic after broken glue, remain and B simultaneously
3+, Ti
4+, Zr
4+binding site needed for coordination, makes this system both remain guanidine gum fracturing fluid system premium properties, has again that tensio-active agent surface and interface tension force is low, the characteristic of the high easily row of returning of contact angle, reduces costs simultaneously.
After broken glue of the present invention, there is surface-active gelled fracturing fluid system, be made up of following ingredients by weight:
Solution A:
Solution B:
Linking agent 0.5-2.0 part
Gel breaker 0.01-0.1 part
Water 97.9-99.5 part
Be the ratio mixing of 100: 0.5-2.0 with volumetric ratio by solution A, solution B, make gelled fracturing fluid;
After described broken glue, there is surface-active slippery water fracturing fluid system, be made up of following ingredients by weight:
Solution A:
Dodecyl grafted guar 0.01-0.15 part
Clay stabilizer 0.5-1.0 part
Water 96.0-98.4 part
Described one has surface-active fracturing fluid system after breaking glue, changes the characteristic of plant gum fracturing fluid single parent water, forms the surfactivity breaking glue solution of amphiphilic, remain and B simultaneously after broken glue
3+, Ti
4+, Zr
4+binding site needed for coordination, makes this system both remain guanidine gum fracturing fluid system premium properties, has again that tensio-active agent surface and interface tension force is low, the characteristic of the high easily row of returning of contact angle, reduces cost simultaneously.
Described one has surface-active fracturing fluid system after breaking glue, and clay stabilizer is KCl or NH
4the one of Cl.
Described one has surface-active fracturing fluid system after breaking glue, temperature stabilising agent be NaOH, KOH, trolamine, phosphoric acid one or more.
Described one has surface-active fracturing fluid system after breaking glue, and gel breaker is the one of ammonium persulphate, Potassium Persulphate, hydrogen peroxide.
Described linking agent is A: three titanium ethanolates, zirconium lactate and boric acid and B:NaOH, NaHCO
3with phosphoric acid at organic additive C: by A: B: C=(2 ~ 10) under the katalysis of one or more of methyl alcohol, the trimethyl carbinol, butyl glycol ether: (1 ~ 3): stir under the part by weight of 10 and namely generate linking agent finished product.
Originally there is surface-active fracturing fluid system not only have and flow change, broken colloidality energy preferably, namely can meet the processing requirement of long crack, high sand ratio construction, and can mixing water pressure break huge discharge, low frictional resistance construction requirement.After surfactivity guanidine gum fracturing fluid system breaks glue, the row's of returning ability is strong, shows good reservoir adaptability, is the fracturing fluid system that construction and reservoir protection performance are excellent.
Owing to reducing the injury of fracturing liquid to reservoir, and can be used as the use of slippery water fracturing liquid, at long celebrating Long Dong, North Shaanxi field conduct 28 mouthfuls of wells, average examination scheduling amount 13.0m
3/ d, on average the row of returning leads 70%, and comparatively offset well improves 10%, achieves good effect of increasing production compared with offset well.Simultaneously in 7 mouthfuls of well mixing water fracturing reform technique test in places of this region field conduct, have surface-active fracturing fluid system and embody and construct preferably and the row's of returning performance after broken glue, 7 mouthfuls of wells inject that liquid measure is large and discharge opeing is rapid.Wherein ring 206-57 well, enters the total liquid measure 620.7m of well
3, press and discharge fracturing fluid 459.9m altogether in latter 47 hours
3, the row of returning leads and reaches 74.1%, and examination scheduling amount reaches 18.6t/d; The village 230 well, enters the total liquid measure 605.9m of well
3, press and discharge fracturing fluid 444.7m altogether in latter 47 hours
3, the row of returning leads and reaches 73.4%, and examination scheduling amount reaches 36.7t/d.This fracturing fluid system has become the important technology that fine and close oil-field development improves per-well production, has certain reference to entering large, that throat radius the is little reservoir reconstruction of ground liquid measure.
Embodiment
Embodiment 1:
Add 96.0 parts of clear water in container by weight at the scene, then when circulating with pump, slowly add 1.0 parts of dodecyl grafted guar, then add clay stabilizer KCl 1.0 parts, temperature stabilising agent trolamine 2.0 parts successively, continue circulation 10 minutes.Continue circulation and liquid is filled, continuing 20 minutes to guarantee that liquid fully mixes, form solution A.
By weight 2.0 parts of linking agents are poured in the container that 97.9 parts of clear water are housed before being about to construction and add 0.1 part of gel breaker Potassium Persulphate, as solution B.
During pressing crack construction, while infusion solution A, by solution B by A: B=100: 1.2 volume ratio mix, formed gelled fracturing fluid.
Embodiment 2:
Add 98.4 parts of clear water in container by weight at the scene, then when circulating with pump, slowly add 0.01 part of dodecyl grafted guar, then add clay stabilizer 1.0 parts of KCl by formula rate, continue circulation 10 minutes.Continue circulation and liquid is filled, continuing 20 minutes to guarantee that liquid fully mixes, form slippery water fracturing liquid.
Embodiment 3:
By following proportions slippery water fracturing liquid:
Dodecyl grafted guar 0.15 part
NH
4cl 0.5 part
96.0 parts, water.
Claims (1)
1. there is a surface-active gelled fracturing fluid system after broken glue, it is characterized in that: its gelled fracturing fluid is made up of following ingredients by weight:
Solution A:
Solution B:
Linking agent 0.5-2.0 part
Gel breaker 0.01-0.1 part
Water 97.9-99.5 part
Be the ratio mixing of 100:0.5-2.0 with volume ratio by solution A, solution B, make gelled fracturing fluid;
Described clay stabilizer is KCl or NH
4the one of Cl;
Described temperature stabilising agent be NaOH, KOH, trolamine, phosphoric acid one or more;
Described gel breaker is the one of ammonium persulphate, Potassium Persulphate, hydrogen peroxide;
Described linking agent is A: three titanium ethanolates, zirconium lactate and boric acid and B:NaOH, NaHCO
3with phosphoric acid at organic additive C: by A:B:C=(2-10) under the katalysis of one or more of methyl alcohol, the trimethyl carbinol, butyl glycol ether: (1-3): the linking agent finished product stirring generation under the part by weight of 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210122523.4A CN103374344B (en) | 2012-04-24 | 2012-04-24 | Fracturing fluid system with surface activity after gel breaking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210122523.4A CN103374344B (en) | 2012-04-24 | 2012-04-24 | Fracturing fluid system with surface activity after gel breaking |
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| Publication Number | Publication Date |
|---|---|
| CN103374344A CN103374344A (en) | 2013-10-30 |
| CN103374344B true CN103374344B (en) | 2015-10-28 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564007B (en) * | 2014-12-30 | 2017-06-23 | 中国石油天然气股份有限公司 | Vertical well fracture network fracturing process for non-fractured compact sand-shale reservoir |
| CN106634935A (en) * | 2016-12-01 | 2017-05-10 | 中国石油天然气股份有限公司 | Slickwater fracturing fluid with ultralow interfacial tension with crude oil after degradation |
| CN106905947A (en) * | 2017-02-08 | 2017-06-30 | 中国石油天然气股份有限公司 | Oil displacement fracturing fluid and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5439059A (en) * | 1994-03-08 | 1995-08-08 | Halliburton Company | Aqueous gel fluids and methods of treating subterranean formations |
| CN101475798A (en) * | 2009-01-20 | 2009-07-08 | 西南石油大学 | Oil and gas well fracturing fluid for 180-200 DEG C high temperature strata |
| CN102086391A (en) * | 2010-12-28 | 2011-06-08 | 西安长庆化工集团有限公司 | Hydrophobic guar gum fracturing fluid and use method thereof |
| CN102127415A (en) * | 2011-01-18 | 2011-07-20 | 大庆油田有限责任公司 | Low-damage super guargum fracturing fluid |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002055843A1 (en) * | 2001-01-09 | 2002-07-18 | Bj Services Company | Well treatment fluid compositions and methods for their use |
-
2012
- 2012-04-24 CN CN201210122523.4A patent/CN103374344B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5439059A (en) * | 1994-03-08 | 1995-08-08 | Halliburton Company | Aqueous gel fluids and methods of treating subterranean formations |
| CN101475798A (en) * | 2009-01-20 | 2009-07-08 | 西南石油大学 | Oil and gas well fracturing fluid for 180-200 DEG C high temperature strata |
| CN102086391A (en) * | 2010-12-28 | 2011-06-08 | 西安长庆化工集团有限公司 | Hydrophobic guar gum fracturing fluid and use method thereof |
| CN102127415A (en) * | 2011-01-18 | 2011-07-20 | 大庆油田有限责任公司 | Low-damage super guargum fracturing fluid |
Non-Patent Citations (2)
| Title |
|---|
| 朱天寿等.第九章致密油气藏储层改造新技术展望第四节压裂液新技术.《超低渗透油藏压裂改造技术》.石油工业出版社,2012,第291页末段和第293页第1段. * |
| 清水压裂工艺技术综述;王素兵;《天然气勘探与开发》;20051225;第28卷(第4期);第39页第1节第1段和第40页第2.7节第1段 * |
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| CN103374344A (en) | 2013-10-30 |
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